Carton with improved ends

ABSTRACT

A triple panel end wall for a Bliss-type carton having cut outs and hinged knife cuts at bottom of the wall between two of the panels to save board in the bottom of such wall without sacrificing strength in the carton embodying such end walls.

Umted States Patent [191 o [u] 3,927,822 Giebel 5] Dec. 23, 1975 CARTON WITH IMPROVED ENDS 2.344.852 3/1944 DEsposito u 229/23 R x 2,483,174 9/1949 Belsinger 229/23 R [75] Buddy Monroe 3,713,579 1/1973 Chafi'ers .5 229/23 R x [73] Assignee: Union Camp Corporation, Way 3,792.8]! 2/l974 Carpenter et al 206/424 X Ni 3,826,362 7/1974 Staskus 206/424 [22] Filed: 1974 8 Primary Examiner-Davis T. Moorhead [21] Appl. No.: 520,644 Attorney, Agent, or Firm-Charles P. Bauer [52] US. Cl 229/23 R; 229/52 B; 206/424 [57] ABSTRACT [51] Int. Cl. B65D 13/00 B65D 5/46 A triple panel end wall for a Bliss-type carton having [58] Field of Search 229/23 3 cut outs and hinged knife cuts at bottom of the wall between two of the panels to save board in the bottom of such wall without sacrificing strength in the carton [56] uNrrE g g; z?ls gi TENTs embodying such end walls. 1.803.696 5/1931 Gates, Jr. et al 229/23 R x 5 Claims 11 Drawing Figures US. Patent Dec. 23, 1975 Sheet 1 of4 3,927,822

U.S. Patent Dec. 23, 1975 Sheet 2 of4 3,927,822

US. Patent Dec. 23, 1975 Sheet 3 01'4 3,927,822

CARTON wITII IMPROVED ENDS BACKGROUND or THE INVENTION DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to the drawings, there is shown in FIG. 1 a

This invention relates to an improvement in cartons generally rectangular blank of Sheet materlal, Such and, more particularly to the end walls of a Bliss-type carton suitable for bottles and other heavy products which require protection in shipment and for reuse. In conventional cartons of this type the end walls are formed from three panels hinged together, each of such panels extending substantially the full height of the carton.

In the end walls of the present invention the cut outs and the hinged knife cuts between two of the panels are so cut that several inches of board can be saved in the bottom of the walls while still providing maximum stitching areas to affix the'bottom of the carton to the end walls and without sacrificing strength in the remainder of the carton.

SUMMARY OF THE INVENTION It is an object of the invention to provide a triple panel end wall for a Bliss-type carton which has cut outs and hinged knife cuts between two of the panels to save board in the end wall without sacrificing strength in the carton.

It is a further object to provide a carton embodying the end walls of the present invention which is so constructed as to minimize any weakness in the cover lock areas of the walls.

It is a further object to provide a blank which is simple and economical to manufacture and can be easily set up into an end wall which is efficient and well suited for its intended purpose.

BRIEF DESCRIPTION OF THE DRAWINGS Other objects and advantages will become apparent from the following description which is to be taken in conjunction with the accompanying drawings, in which:

FIG 1 is a plan view ofa blank for forming an end for a Bliss-type carton, the said end embodying the present invention;

FIG. 2 is a side elevation of the blank of FIG. I showing how the panels are folded into superimposed position to form the end of the carton;

FIG. 3 is a perspective view of the carton embodying the end formed from the blank of FIG. 1;

FIG. 4 is a cross-sectional view along the line 4-4 of FIG. 3;

FIG. 5 is an end elevation of the outside of the end formed from the blank of FIG. 1;

FIG. 6 is an enlarged view of a portion of FIG. 4 showing the cover lock;

FIG. 7 is a view similar to that of FIG. 1 showing an end with a different form of cover closure;

FIG. 8 is a view similar to that of FIG. 2 showing the folding of the blank of FIG. 7;

FIG. 9 is a view similar to that of FIG. 3 embodying the end formed from the blank of FIG. 7;

FIG. [0 is a cross-sectional view along the line 10-10 of FIG. 9; and

FIG. II is a cross-sectional view along the line lI-ll of FIG. 9.

as fiber board or the like, of a weight suitable for the type of carton to be constructed. The blank 10 consists of three panels folded to form the end wall of a Blisstype carton (FIG. 3), namely inner panel 11, outer panel 12, and intermediate panel 13. Panels 11 and 12 are attached along a straight score line 14. The connection between panels 12 and 13 is cut out in steps to provide projections [20, 12b and and recesses 12d and l2e for the panel 12 and projections 13a and 13b for the panel 13 and is partially cut to provide hinge line 15 at the base of the recess 12d and the outer edge of the projection 13a and hinge line 16 at the base of the recess 12a and the outer edge of the projection 13b. Such hinge lines 15 and 16 are parallel to and equally spaced from the score line 14.

The blank is also provided with matching handholes 17 which will be superimposed when the panels are folded to form the end wall. In addition the panels are provided with matching cover locking slots 18 which will likewise be superimposed when the panels are folded to form the end wall. The hand holes and cover slots are a matter of preference for the needs of the particular carton.

FIG. 2 illustrates the folding of the inner panel 11, outer panel 12, and intermediate panel 13 for forming the end wall for the carton. FIG. 5 shows such end wall as it appears from the outside looking at the outer panel 12. In assembling the carton with the end walls of the present invention, a sheet scored to form a bottom 19, side walls 20, cover flaps 21 and flanges 19a, 20a and 21a is secured to such end walls by stitching 22 the bottom and side flanges l9 and 20a to the bottoms and sides of the end walls. It will be noted that the bottom flange 19a is stitched into the projections 12a, 12b and 120, which provide ample areas for maximum staple clinching particularly on automatic machines. With the intermediate panel 13 connected to the outer panel along hinge lines 15 and 16 above the base of the wall, it will be apparent that the intermediate panel can be shorter than the outer and inner panels, thus saving several inches of board in the bases of the walls. This reduction in square footage allows a price advantage and economy in cartons employing such ends.

FIG. 6 shows how the flanges 21a can be folded into the cover slots 18 for locking after the carton has been filled and is ready for shipment.

FIGS. 7 l1 illustrate a carton having a different type of cover flange 21a and a different lock for securing the cover in place. The cover is provided with a raised portion 211) at the end of each cover flange 2111 which raised portion locks in a slot 23 in the inner panel I]. However, the three panels forming the end wall and the manner of connection are the same as heretofore described for the blank of FIG. I.

It will be seen that the end wall of the present invention not only saves board, but also insures ample stitching areas so as not to weaken the strength of the carton. Furthermore, the intermediate panel of the wall runs all the way to the top of the wall to minimize any weakness in the hand hole and cover locking slots of the wall.

Thus, among others, the several aforenoted objects and advantages are most effectively attained. Although a somewhat preferred embodiment of the invention has been disclosed and herein described in detail, it should be understood that this invention is in no sense limited thereby and its scope is to be determined by that of the appended claims.

Having thus described the invention, what is claimed l. A one-sheet blank made from a generally rectangular sheet of paperboard having three connected panels adapted to be folded into a triple end wall for a Bliss-type carton in which the bottom and side walls are secured to two individual end walls comprising:

a transverse score line connecting the inner and outer panels of said triple end wall, the said inner panel having a width and height equal respectively to the width and height of the carton;

the outer and intermediate panels of said triple end wall being connected along separated hinged knife cuts each parallel to and equally spaced from the transverse score line and being disconnected along cut lines parallel to and intermediate the hinged knife cuts and cut lines extending from the parallel cut lines to the hinged knife cuts to provide thereby projections in the outer wall, located between the hinged knife cuts, the height of the outer panel from the transverse score line to the parallel cut lines of the projections being substantially equal to the height of the carton; and

the height of said intermediate panel when reversed folded 180 over the outer panel extending from the hinged knife cuts to approximately the transverse score line and being shorter than the height of the carton whereby. when the panels and handholes are superimposed to form an end wall for a carton, there will be a saving of board with ample areas in the projections to secure the bottom wall to the end walls and sufficient intermediate panel to the top of the carton to minimize any weakness in the upper portion of such wall.

2. The blank of claim I in which the three panels of 3. In a Bliss-type carton of paperboard having the bottom and side walls secured to individual end walls the improvement comprising:

a pair of end walls each formed from three connected outer, inner and intermediate panels folded and superimposed to form a triple end wall;

a transverse score line in the end wall at the top of the carton connecting the inner and outer panels of said triple end wall, the said inner panel having a width and height equal respectively to width and height of the carton;

the outer and intermediate panels of said triple end wall being connected along separate hinged knife cuts each parallel to the transverse score line and equally spaced from the bottom of the carton;

the outer and intermediate panels of said triple end wall being disconnected along cut lines parallel to and intermediate the hinged knife cuts and cut lines extending from the parallel cut lines to the hinged knife cuts to provide projections in the outer wall between the hinged knife cuts, the height of the outer panel from the transverse score line to the parallel cut lines of the projections being substantially equal to the height of the carton;

the height of the intermediate panel extending from the hinged knife cuts to approximately the transverse score line and being shorter than the height of the carton; and,

the bottom wall of the carton being secured to the projections of the outer panel and the base of the inner panel whereby there will be a saving of board with ample areas in the said projection to secure the bottom wall to the end walls and sufficiently intermediate panel to the top of the carton to minimize any weakness in the upper portion of such wall.

4. The carton of claim 3 in which the bottom wall of the carton is provided with end flanges, the said flanges of the bottom wall being stitched to the said projections of the outer panel and the base of the inner panel.

5. The carton of claim 3 in which the three panels of the end walls are provided with aligned hand-holes, the said panels providing ample board around the handholes for lifting and carrying the carton. 

1. A one-sheet blank made from a generally rectangular sheet of paperboard having three connected panels adapted to be folded into a triple end wall for a Bliss-type carton in which the bottom and side walls are secured to two individual end walls comprising: a transverse score line connecting the inner and outer panels of said triple end wall, the said inner panel having a width and height equal respectively to the width and height of the carton; the outer and intermediate panels of said triple end wall being connected along separated hinged kNife cuts each parallel to and equally spaced from the transverse score line and being disconnected along cut lines parallel to and intermediate the hinged knife cuts and cut lines extending from the parallel cut lines to the hinged knife cuts to provide thereby projections in the outer wall, located between the hinged knife cuts, the height of the outer panel from the transverse score line to the parallel cut lines of the projections being substantially equal to the height of the carton; and the height of said intermediate panel when reversed folded 180* over the outer panel extending from the hinged knife cuts to approximately the transverse score line and being shorter than the height of the carton whereby, when the panels and handholes are superimposed to form an end wall for a carton, there will be a saving of board with ample areas in the projections to secure the bottom wall to the end walls and sufficient intermediate panel to the top of the carton to minimize any weakness in the upper portion of such wall.
 2. The blank of claim 1 in which the three panels of the blank are provided with hand-holes which are positioned to align with each other when the panels are superimposed into an end wall, the said panels providing ample board around the hand-holes for lifting and carrying the carton.
 3. In a Bliss-type carton of paperboard having the bottom and side walls secured to individual end walls the improvement comprising: a pair of end walls each formed from three connected outer, inner and intermediate panels folded and superimposed to form a triple end wall; a transverse score line in the end wall at the top of the carton connecting the inner and outer panels of said triple end wall, the said inner panel having a width and height equal respectively to width and height of the carton; the outer and intermediate panels of said triple end wall being connected along separate hinged knife cuts each parallel to the transverse score line and equally spaced from the bottom of the carton; the outer and intermediate panels of said triple end wall being disconnected along cut lines parallel to and intermediate the hinged knife cuts and cut lines extending from the parallel cut lines to the hinged knife cuts to provide projections in the outer wall between the hinged knife cuts, the height of the outer panel from the transverse score line to the parallel cut lines of the projections being substantially equal to the height of the carton; the height of the intermediate panel extending from the hinged knife cuts to approximately the transverse score line and being shorter than the height of the carton; and, the bottom wall of the carton being secured to the projections of the outer panel and the base of the inner panel whereby there will be a saving of board with ample areas in the said projection to secure the bottom wall to the end walls and sufficiently intermediate panel to the top of the carton to minimize any weakness in the upper portion of such wall.
 4. The carton of claim 3 in which the bottom wall of the carton is provided with end flanges, the said flanges of the bottom wall being stitched to the said projections of the outer panel and the base of the inner panel.
 5. The carton of claim 3 in which the three panels of the end walls are provided with aligned hand-holes, the said panels providing ample board around the hand-holes for lifting and carrying the carton. 